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How to vertically center a piece of text on a page?
The 2019 Stack Overflow Developer Survey Results Are InHow to vertically center content in ConTeXt?Non-vertically-centered TikZ matrix of nodes cell contentVertical alignment of text within a table cellHow to typeset a vbox to a grid in plain TeX?How can I change the layout of a page (plain TeX)?How to align baselines of picture text and body text?Plain Tex: Get cell in table to span multiple rows, and contents to be centeredPlain TeX: Line up some text boxesHow to align vertically by right border?How to properly change page offsets?Can `showlists` display the page number at the bottom?
I've been searching how to center a piece of text vertically on a page, since I wanted to create a cover for my reports with the Title centered both vertically and horizontally. I first tried the following code:
vfil
centerline{Title}
vfil
ejectend
But this isn't centered vertically. So I found
this answer, and so I added leavevmode to the beginning of the file. And it worked! I also tried putting instead indentat the beginning of the original. And it also worked!
So my question is: Why do you need to start a paragraph or "leave vertical mode" before the first vfil in order for the glue to work in centering the text veertically on the page? It all seems very odd, indeed.
plain-tex
asked Jan 21 at 17:12
tigre200tigre200
214
add a comment |
I've been searching how to center a piece of text vertically on a page, since I wanted to create a cover for my reports with the Title centered both vertically and horizontally. I first tried the following code:
vfil
centerline{Title}
vfil
ejectend
But this isn't centered vertically. So I found
this answer, and so I added leavevmode to the beginning of the file. And it worked! I also tried putting instead indentat the beginning of the original. And it also worked!
So my question is: Why do you need to start a paragraph or "leave vertical mode" before the first vfil in order for the glue to work in centering the text veertically on the page? It all seems very odd, indeed.
plain-tex
asked Jan 21 at 17:12
tigre200tigre200
214
2
Because glue is discardable at a page break. p112 of The TeXBook explains the mechanism.
– Thruston
Jan 21 at 17:28
1
You can also usenullorhbox{}or... many other options. The reason/idea of discarding glue at the top of a page is similar to discarding glue at the start of a line: after a line/page break, you don't want “leftover” glue from the previous line/page to affect the current one.
– ShreevatsaR
Jan 21 at 18:46
Note vspace* vs. vspace.
– John Kormylo
Jan 22 at 0:04
Didn't get that, John Kormylo.
– tigre200
Jan 23 at 21:22
add a comment |
I've been searching how to center a piece of text vertically on a page, since I wanted to create a cover for my reports with the Title centered both vertically and horizontally. I first tried the following code:
vfil
centerline{Title}
vfil
ejectend
But this isn't centered vertically. So I found
this answer, and so I added leavevmode to the beginning of the file. And it worked! I also tried putting instead indentat the beginning of the original. And it also worked!
So my question is: Why do you need to start a paragraph or "leave vertical mode" before the first vfil in order for the glue to work in centering the text veertically on the page? It all seems very odd, indeed.
plain-tex
asked Jan 21 at 17:12
tigre200tigre200
214
I've been searching how to center a piece of text vertically on a page, since I wanted to create a cover for my reports with the Title centered both vertically and horizontally. I first tried the following code:
vfil
centerline{Title}
vfil
ejectend
But this isn't centered vertically. So I found
this answer, and so I added leavevmode to the beginning of the file. And it worked! I also tried putting instead indentat the beginning of the original. And it also worked!
So my question is: Why do you need to start a paragraph or "leave vertical mode" before the first vfil in order for the glue to work in centering the text veertically on the page? It all seems very odd, indeed.
plain-tex
plain-tex
asked Jan 21 at 17:12
tigre200tigre200
214
asked Jan 21 at 17:12
tigre200tigre200
214
asked Jan 21 at 17:12
tigre200tigre200
214
asked Jan 21 at 17:12
tigre200tigre200
214
asked Jan 21 at 17:12
tigre200tigre200
214
214
2
Because glue is discardable at a page break. p112 of The TeXBook explains the mechanism.
– Thruston
Jan 21 at 17:28
1
You can also usenullorhbox{}or... many other options. The reason/idea of discarding glue at the top of a page is similar to discarding glue at the start of a line: after a line/page break, you don't want “leftover” glue from the previous line/page to affect the current one.
– ShreevatsaR
Jan 21 at 18:46
Note vspace* vs. vspace.
– John Kormylo
Jan 22 at 0:04
Didn't get that, John Kormylo.
– tigre200
Jan 23 at 21:22
add a comment |
2
Because glue is discardable at a page break. p112 of The TeXBook explains the mechanism.
– Thruston
Jan 21 at 17:28
1
You can also usenullorhbox{}or... many other options. The reason/idea of discarding glue at the top of a page is similar to discarding glue at the start of a line: after a line/page break, you don't want “leftover” glue from the previous line/page to affect the current one.
– ShreevatsaR
Jan 21 at 18:46
Note vspace* vs. vspace.
– John Kormylo
Jan 22 at 0:04
Didn't get that, John Kormylo.
– tigre200
Jan 23 at 21:22
2
2
Because glue is discardable at a page break. p112 of The TeXBook explains the mechanism.
– Thruston
Jan 21 at 17:28
Because glue is discardable at a page break. p112 of The TeXBook explains the mechanism.
– Thruston
Jan 21 at 17:28
1
1
You can also use
null or hbox{} or... many other options. The reason/idea of discarding glue at the top of a page is similar to discarding glue at the start of a line: after a line/page break, you don't want “leftover” glue from the previous line/page to affect the current one.– ShreevatsaR
Jan 21 at 18:46
You can also use
null or hbox{} or... many other options. The reason/idea of discarding glue at the top of a page is similar to discarding glue at the start of a line: after a line/page break, you don't want “leftover” glue from the previous line/page to affect the current one.– ShreevatsaR
Jan 21 at 18:46
Note vspace* vs. vspace.
– John Kormylo
Jan 22 at 0:04
Note vspace* vs. vspace.
– John Kormylo
Jan 22 at 0:04
Didn't get that, John Kormylo.
– tigre200
Jan 23 at 21:22
Didn't get that, John Kormylo.
– tigre200
Jan 23 at 21:22
add a comment |
1 Answer
1
active
oldest
votes
As mentioned in the comments TeX ignores glue at the end or top of a
page as it does ignore glue at the end or start of a line.
But plain TeX knows some commands for glue that does not vanish; you do not need to enter a special command like leavevmode. For glue
at the top of a page topglue is used instead of topskip. (And there is hglue and vglue as non-discarding variants of hskip and vskip.)
For your problem this topglue provides a solution. As bye contains vfill, i.e., glue with specification 0pt plus 1fill, input
topglue 0pt plus 1fill
centerline{Titel}
bye
answered 2 hours ago
Udo WermuthUdo Wermuth
830511
add a comment |
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oldest
votes
As mentioned in the comments TeX ignores glue at the end or top of a
page as it does ignore glue at the end or start of a line.
But plain TeX knows some commands for glue that does not vanish; you do not need to enter a special command like leavevmode. For glue
at the top of a page topglue is used instead of topskip. (And there is hglue and vglue as non-discarding variants of hskip and vskip.)
For your problem this topglue provides a solution. As bye contains vfill, i.e., glue with specification 0pt plus 1fill, input
topglue 0pt plus 1fill
centerline{Titel}
bye
answered 2 hours ago
Udo WermuthUdo Wermuth
830511
add a comment |
As mentioned in the comments TeX ignores glue at the end or top of a
page as it does ignore glue at the end or start of a line.
But plain TeX knows some commands for glue that does not vanish; you do not need to enter a special command like leavevmode. For glue
at the top of a page topglue is used instead of topskip. (And there is hglue and vglue as non-discarding variants of hskip and vskip.)
For your problem this topglue provides a solution. As bye contains vfill, i.e., glue with specification 0pt plus 1fill, input
topglue 0pt plus 1fill
centerline{Titel}
bye
answered 2 hours ago
Udo WermuthUdo Wermuth
830511
add a comment |
As mentioned in the comments TeX ignores glue at the end or top of a
page as it does ignore glue at the end or start of a line.
But plain TeX knows some commands for glue that does not vanish; you do not need to enter a special command like leavevmode. For glue
at the top of a page topglue is used instead of topskip. (And there is hglue and vglue as non-discarding variants of hskip and vskip.)
For your problem this topglue provides a solution. As bye contains vfill, i.e., glue with specification 0pt plus 1fill, input
topglue 0pt plus 1fill
centerline{Titel}
bye
answered 2 hours ago
Udo WermuthUdo Wermuth
830511
As mentioned in the comments TeX ignores glue at the end or top of a
page as it does ignore glue at the end or start of a line.
But plain TeX knows some commands for glue that does not vanish; you do not need to enter a special command like leavevmode. For glue
at the top of a page topglue is used instead of topskip. (And there is hglue and vglue as non-discarding variants of hskip and vskip.)
For your problem this topglue provides a solution. As bye contains vfill, i.e., glue with specification 0pt plus 1fill, input
topglue 0pt plus 1fill
centerline{Titel}
bye
answered 2 hours ago
Udo WermuthUdo Wermuth
830511
answered 2 hours ago
Udo WermuthUdo Wermuth
830511
answered 2 hours ago
Udo WermuthUdo Wermuth
830511
answered 2 hours ago
Udo WermuthUdo Wermuth
830511
830511
add a comment |
add a comment |
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2
Because glue is discardable at a page break. p112 of The TeXBook explains the mechanism.
– Thruston
Jan 21 at 17:28
1
You can also use
nullorhbox{}or... many other options. The reason/idea of discarding glue at the top of a page is similar to discarding glue at the start of a line: after a line/page break, you don't want “leftover” glue from the previous line/page to affect the current one.– ShreevatsaR
Jan 21 at 18:46
Note vspace* vs. vspace.
– John Kormylo
Jan 22 at 0:04
Didn't get that, John Kormylo.
– tigre200
Jan 23 at 21:22